2 Colour Buttercream

My apologies if this has been answered previously (and please feel free to post a link to the relevant topic) but i was hoping someone could tell me how you get the colour edging when piping buttercream/royal icing.

Ive seen cakes with a border of white with blue or red etc tips/streaks through it.

Morning... You can do it tow ways,1. Take a very smll, fine brush and with your pipping bag in hand on it's side, draw one lines of the color you want in the bag on each side of the bag. Make usre they are nice strokes, not globby and then fill your bag w. white buttercream frosting and then decorate. It will come out white w. the streaks of the color used...

2. Or

take your pipping bag on it's side and all your colored buttercream to one side and flip it over, so you have your bag on the other side and fill it w. your other color, then you can pipe out 2 colors swirly.

I prefer the "Paint the inside of the bag with a stripe" method. If making roses, for example, be sure to line the tip up with the color. Meaning for the red stripe to be on the edge or your rose leaves, you need to make sure the small opening of the tip is lined up with the color stripe in the bag.